A8498SLJ-T Allegro Microsystems Inc, A8498SLJ-T Datasheet
A8498SLJ-T
Specifications of A8498SLJ-T
Related parts for A8498SLJ-T
A8498SLJ-T Summary of contents
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Wide Input Voltage 3.0 A Step Down Regulator Features and Benefits ▪ input range ▪ Integrated DMOS switch ▪ Adjustable fixed off-time ▪ Highly efficient ▪ Adjustable 0 output Package: 8-Lead SOIC with ...
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... Additional information is available on the Allegro website. Ordering Information Use the following complete part numbers when ordering: a Part Number A8498SLJTR-T A8498SLJ-T a Leadframe plating 100% matte tin. b Contact Allegro for additional packing options. Wide Input Voltage 3.0 A Step Down Regulator Symbol Conditions V ...
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A8498 BOOT V IN ENB μC TSET GND VBB UVLO TSD Wide Input Voltage 3.0 A Step Down Regulator Functional Block Diagram Boot Charge – Switch PWM Control Switch Disable Clamp + – – I_Peak I_Demand Error COMP Soft Start ...
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A8498 ELECTRICAL CHARACTERISTICS Characteristics VIN Quiescent Current VBIAS Input Current Buck Switch On Resistance Fixed Off-Time Proportion Feedback Voltage Output Voltage Regulation Feedback Input Bias Current Soft Start Time Buck Switch Current Limit ENB Open Circuit Voltage ENB Input Voltage ...
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A8498 The A8498 is a fixed off-time, current-mode–controlled buck switching regulator. The regulator requires an external clamping diode, inductor, and filter capacitor, and operates in both continu- ous and discontinuous modes. An internal blanking circuit is used to filter out ...
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A8498 The switching frequency is calculated as follows Shorted Load. If the voltage on the FB pin falls below 0.4 V, the regulator will invoke a 1.5 A typical overcurrent limit to ...
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A8498 RTSET Selection. Correct selection of RTSET values will ensure that minimum on time of the switcher is not violated and prevent the switcher from cycle skipping. For a given V V ratio, the RTSET value must be greater than ...
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A8498 Terminal List Table Number Wide Input Voltage 3.0 A Step Down Regulator Pin Out Diagram BOOT 1 8 VIN ENB Pad TSET 3 6 VBIAS GND Name Description 1 BOOT Gate drive boost ...
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A8498 3.30 .130 NOM 8X 0.10 [.004] C 0.51 .020 8X 0.31 .012 0.25 [.010 1.27 .050 0.65 .026 MAX 1.75 .069 NOM 2X 0.20 .008 MIN C 1 3.30 .130 NOM The ...